# JAX Stereo Tool (AU) vs QuadroSphere

The clearest difference is rating: QuadroSphere at 5.0 against JAX Stereo Tool (AU)'s 4.4. QuadroSphere also leads on review sentiment (100% vs 80%). JAX Stereo Tool (AU)'s advantage is price ($5.99 vs $7.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

JAX Stereo Tool (AU) costs $5.99 and QuadroSphere $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

QuadroSphere holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 27 and 10 respectively. Written reviews point the same way: 80% of JAX Stereo Tool (AU)'s written reviews are positive against 100% of QuadroSphere's.

JAX Stereo Tool (AU) ships an update every 11 days, QuadroSphere every 3 weeks. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | JAX Stereo Tool (AU) | QuadroSphere |
| --- | --- | --- |
| Price | **$5.99** | $7.99 |
| Rating | [4.4 (27 ratings)](https://appshunter.io/ios/app/jax-stereo-tool-au/id1473390302/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/quadrosphere/id6740915664/reviews)** |
| Number of ratings | **27** | 10 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Paid | Paid |
| Size | 10 MB | 18 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jens Guell](https://appshunter.io/developer/1195004865) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### JAX Stereo Tool (AU)

[App page](https://appshunter.io/ios/app/jax-stereo-tool-au/id1473390302)

This audio processing tool allows users to visually manipulate the stereo image of digital audio. It functions as a mastering effect, enabling real-time adjustment of stereo width and the recovery of mono compatibility. The app includes a correlograph for visual feedback and optimization.

**Highlights:** Visual stereo image manipulation, Real-time stereo width adjustment, Mono compatibility recovery, Integrated correlograph for visual feedback, Audio Unit (AUv3) plugin format, System-wide availability

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### QuadroSphere

[App page](https://appshunter.io/ios/app/quadrosphere/id6740915664)

This audio plugin allows musicians to sculpt immersive soundscapes by controlling stereo placement and effects across four distinct frequency bands. Create dynamic, atmospheric audio with automated movement and morphing between saved settings.

**Highlights:** 4 configurable frequency bands, Control stereo separation, level, and pan per band, Create and morph between 12 snapshots, Modulation control for automated sweeps, Per-band effects (Haas, Delay, Reverb, Chorus, Compressor), Convert mono to pseudo-stereo, MIDI CC control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JAX Stereo Tool (AU) free?

JAX Stereo Tool (AU) costs $5.99, with no in-app purchases.

### Is QuadroSphere free?

QuadroSphere costs $7.99, with no in-app purchases.

### Which has better reviews, JAX Stereo Tool (AU) or QuadroSphere?

QuadroSphere is rated higher. JAX Stereo Tool (AU) averages 4.4 out of 5 from 27 ratings, while QuadroSphere averages 5.0 from 10 ratings.

### Do JAX Stereo Tool (AU) or QuadroSphere have ads?

Neither JAX Stereo Tool (AU) nor QuadroSphere shows ads.

### Which is updated more often, JAX Stereo Tool (AU) or QuadroSphere?

JAX Stereo Tool (AU) ships an update every 11 days, and QuadroSphere every 3 weeks. Most recently, JAX Stereo Tool (AU) was updated on September 23, 2026 and QuadroSphere on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*